CN209304403U - Transformer fe stem clamping device - Google Patents
Transformer fe stem clamping device Download PDFInfo
- Publication number
- CN209304403U CN209304403U CN201822066803.3U CN201822066803U CN209304403U CN 209304403 U CN209304403 U CN 209304403U CN 201822066803 U CN201822066803 U CN 201822066803U CN 209304403 U CN209304403 U CN 209304403U
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- side plate
- transformer
- clamping device
- clamping piece
- shaft shoulder
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Abstract
The utility model provides a kind of transformer fe stem clamping device, it is related to technical field of transformer production, including upper clamping piece, lower clamping piece and for connecting the upper clamping piece and lower clamping piece and the pull rod of the maximum distance between the upper clamping piece and lower clamping piece can be limited, it further include axle sleeve and clamp system, the clamp system includes lead screw, end axis, mounting lid and bottom seat；Transformer fe stem clamping device provided by the utility model, the pedestal that the lead screw of rotation can be connected by thrust bearing and compressed with iron core column upper surface, when guaranteeing lead screw rotation, pedestal will not be rotated to rub with the upper surface of iron core column, is reliably efficiently completed the clamping operation of transformer fe stem.
Description
Technical field
The utility model belongs to technical field of transformer production, is to be related to a kind of transformer fe stem folder more specifically
Tight device.
Background technique
Need to turn over to turn 90 degrees in roll-over table after the completion of transformer fe stem stack makes iron core column stand up, and not only needs before standing up
Tighten the fastener carried in iron core design requirement itself, it is also necessary to be clamped to iron core column, it is ensured that lamination after standing up
Between without the changing of the relative positions, iron core column without big deformation and has certain verticality on the whole.
Iron core column clamping device in the prior art includes the compressing member contacted with iron core column and sets threaded revolving part,
The rotation of revolving part generates compressing member to the pressing force of iron core column, while using roll structure connection revolving part and compressing member, preventing
Only compressing member is rotated with revolving part.It finds that above-mentioned roll structure is easy failure in practical application, iron core column is caused to clamp dress
It sets and is not available, influence to produce.
Utility model content
The purpose of this utility model is to provide a kind of transformer fe stem clamping devices, it is intended to which solution is rolled in the prior art
Pearl structure is easy the problem of failure, improves the structure type of iron core column clamping device, enhances the reliability of iron core column clamping device.
In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of transformer fe stem clamping dress
It sets, including upper clamping piece, lower clamping piece and for connecting the upper clamping piece and lower clamping piece and the upper clamping piece and lower clamping piece can be limited
Between maximum distance pull rod, further include axle sleeve and clamp system；
The axle sleeve is fixedly arranged on the center of the upper clamping piece and is equipped with internal screw thread；
The clamp system includes lead screw, end axis, mounting lid and bottom seat；
The lead screw is arranged in the axle sleeve and is equipped with and the matched external screw thread of internal screw thread on the axle sleeve；
The end axis is coaxially fixedly arranged on the lead screw lower end and middle part is equipped with the shaft shoulder, and lower part is equipped with bearing portion；
The mounting lid includes the top plate equipped with center opening, and the top plate is arranged in described by means of the center opening
Above the shaft shoulder；
The pedestal is fixedly connected with mounting lid, including being located at the bottom plate below the end axis, the bottom plate and institute
State the thrust bearing for being equipped with and being set on the bearing portion between the shaft shoulder.
Further, the end axis further includes above the shaft shoulder and diameter is less than the interconnecting piece of the shaft shoulder, institute
It states interconnecting piece to be fixedly connected with the lower end of the lead screw, the length of the bearing portion is less than the thickness of the thrust bearing.
Further, the mounting lid further includes the first side plate of the cylindrical toroidal extended downwardly from the top plate, described
Pedestal further includes the second side plate of the cylindrical toroidal stretched out upwards from the bottom plate, first side plate and the second side plate phase
It grafting and is fixed to each other.
Further, the outer wall of second side plate is equipped with external screw thread, and the inner wall of first side plate is equipped with and described the
The matched internal screw thread of external screw thread on two side plates, first side plate and second side plate are threadably secured connection.
Further, the height of second side plate be greater than the thrust bearing thickness, the thrust bearing include with
The blowout patche of the end axis rotation and the seat ring abutted with the bottom plate, the external cylindrical surface of the seat ring are interior with second side plate
Connection is interference fitted between wall, the internal diameter of second side plate in place of the blowout patche is greater than the outer diameter of the blowout patche.
Further, the outer diameter of the shaft shoulder be less than second side plate internal diameter, the upper surface of the shaft shoulder with it is described
Gap is equipped between the lower end surface of top plate, the gap is not more than two millimeters.
Further, the top of the lead screw is coaxially installed with the spin-block for rotating the lead screw.
Further, the cross sectional shape of the spin-block is rectangular.
Further, the spin-block is hex nut.
The beneficial effect of transformer fe stem clamping device provided by the utility model is: being connected and is revolved by thrust bearing
The shaft shoulder turned and the bottom plate compressed with iron core column upper surface, when guaranteeing shaft shoulder rotation, bottom plate will not be rotated and iron core column
Upper surface rubs；Pedestal can be articulated on the shaft shoulder by mounting lid together with thrust bearing；The present apparatus is compact-sized can
It leans on, the clamping operation to transformer fe stem can be efficiently completed.
Detailed description of the invention
Fig. 1 is the overall structure composition schematic diagram of transformer fe stem clamping device provided by the embodiment of the utility model；
Fig. 2 is the structure composition schematic diagram held at axis；
Fig. 3 clamps the schematic diagram of iron core column using the present apparatus；
Fig. 4 is the schematic diagram that thrust bearing is connect with end axis and pedestal.
In figure: 11, upper clamping piece, 12, lower clamping piece, 13, pull rod, 2, axle sleeve, 31, lead screw, 31a, spin-block, 32, end axis, 32a,
The shaft shoulder, 32b, interconnecting piece, 32c, bearing portion, 33, mounting lid, 33a, top plate, 33b, the first side plate, 34, pedestal, 34a, bottom plate,
34b, the second side plate, 4, thrust bearing, 4a, blowout patche, 4b, seat ring, 5, iron core column.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
Also referring to Fig. 1, Fig. 2 and Fig. 4, now transformer fe stem clamping device provided by the utility model is said
It is bright.The transformer fe stem clamping device, including upper clamping piece 11, lower clamping piece 12 and for connecting upper clamping piece 11 and lower clamping piece 12
And the pull rod 13 of the maximum distance between upper clamping piece 11 and lower clamping piece 12 can be limited, it further include axle sleeve 2 and clamp system；Axle sleeve
2 are fixedly arranged on the center of upper clamping piece 11, and the external cylindrical surface of axle sleeve 2 is fixedly connected with upper clamping piece 11, and inner cylinder face is equipped with internal screw thread.
The clamp system includes lead screw 31, end axis 32, mounting lid 33 and pedestal 34；Lead screw 31 be arranged in axle sleeve 2 and
Equipped with the matched external screw thread of internal screw thread on axle sleeve 2, therefore when rotating threaded shaft 31, lead screw 31 and axle sleeve 2 will occur relatively
Movement, such as lead screw 31 move downward, and axle sleeve 2 drives upper clamping piece 11 to move upwards；
End axis 32 is coaxially fixedly arranged on 31 lower end of lead screw and middle part is equipped with shaft shoulder 32a, and lower part is equipped with bearing portion 32c；
Mounting lid 33 includes the top plate 33a equipped with center opening, and top plate 33a is arranged in the shaft shoulder by means of the center opening
The top of 32a；Specifically, end axis 32 is located at the position above shaft shoulder 32a and passes through from the center opening of the top plate 33a, and
The aperture of the center opening is greater than the outer diameter of lead screw 31；The aperture of the center opening is less than the outer diameter of the shaft shoulder 32a, because
This mounting lid 33 can be mounted on shaft shoulder 32a by means of top plate 33a；
Pedestal 34 is fixedly connected with mounting lid 33, bottom plate 34a, bottom plate 34a and shaft shoulder 32a including being located at 32 lower section of end axis
Between be equipped with the thrust bearing 4 that is set on bearing portion 32c；As shown in figure 3, when being clamped to iron core column 5, bottom plate 34a's
Lower end surface and the upper surface of iron core column 5 contradict, and the pressing force that the upper surface of bottom plate 34a is downward by thrust bearing 4, therefore bottom
Plate 34a can compress downwards iron core column 5, and iron core column 5 is clamped between bottom plate 34a and lower clamping piece 12.Specifically, such as Fig. 4 institute
Showing, thrust bearing 4 includes the blowout patche 4a and static seat ring 4b of rotation, when compressing iron core column 5, pressure of the blowout patche 4a in shaft shoulder 32a
It rotates, impaction state is kept between seat ring 4b and bottom plate 34a and will not be rotated with lead screw 31 under tight.
Transformer fe stem clamping device provided by the utility model use process is as follows: shape after the completion of lamination stack
At iron core column 5 as shown in Figure 3；Upper clamping piece 11 is placed on the top of iron core column 5, uses two by iron core column 5 before standing up
A length pull rod 13 appropriate is docked with upper clamping piece 11, then puts lower clamping piece 12 in the bottom of iron core column 5, and with pull rod 13
Docking；Rotating threaded shaft 31 relatively moves lead screw 31 with axle sleeve 2, and lead screw 31 moves down, axle sleeve 2 drive upper clamping piece 11 to
Upper movement；When the upper end face contact of bottom plate 34a and iron core column 5, and when upper clamping piece 11 and lower clamping piece 12 are tensed by pull rod 13, continue
Rotating threaded shaft 31 will generate the pressing force downward to iron core column 5；Above-mentioned pressing force results from lead screw 31 and is threadedly coupled with axle sleeve 2
Place, is transmitted on shaft shoulder 32a by lead screw 31, and shaft shoulder 32a compresses thrust bearing 4, and thrust bearing 4 compresses bottom plate 34a, bottom plate
34a compresses iron core column 5, so that iron core column 5 is clamped between bottom plate 34a and lower clamping piece 12.
The beneficial effect of transformer fe stem clamping device provided by the utility model is: being connected by thrust bearing 4
The shaft shoulder 32a of the rotation and bottom plate 34a compressed with 5 upper surface of iron core column, when guaranteeing shaft shoulder 32a rotation, bottom plate 34a will not occur
It rotates and rubs with the upper surface of iron core column 5；Pedestal 34 can be articulated in the shaft shoulder together with thrust bearing 4 by mounting lid 33
On 32a；The present apparatus is compact-sized reliable, can be efficiently completed the clamping operation to transformer fe stem.
Further, referring to Fig. 4, one kind as transformer fe stem clamping device provided by the utility model is specific
Embodiment, end axis 32 further includes above the shaft shoulder 32a and diameter is less than the interconnecting piece 32b of shaft shoulder 32a, interconnecting piece 32b with
The lower end of lead screw 31 is fixedly connected；Specifically, diameter of the diameter of bearing portion 32c again smaller than shaft shoulder 32a, thrust bearing 4 are arranged
In on the external cylindrical surface of bearing portion 32c；The length of bearing portion 32c is less than the thickness of thrust bearing 4, but the length of bearing portion 32c
Can not be too small, it need to guarantee that the inner cylinder face of seat ring 4b can largely be connect with the external cylindrical surface of bearing portion 32c.
Further, Fig. 2 and Fig. 4 are please referred to, one as transformer fe stem clamping device provided by the utility model
Kind specific embodiment, mounting lid 33 further include the first side plate 33b from the top plate 33a cylindrical toroidal extended downwardly, pedestal 34
It further include the second side plate 34b from the bottom plate 34a cylindrical toroidal stretched out upwards, the first side plate 33b is plugged with the second side plate 34b
And it is fixed to each other.First side plate 33b is plugged with the second side plate 34b, i.e. the first side plate 33b and the second side plate 34b are in length side
It partially overlaps upwards.First side plate 33b is fixed to each other with the second side plate 34b, also connects to mount lid 33 and pedestal 34 to be fixed
It connects, so that mounting lid 33 can be articulated in together pedestal 34 and the thrust bearing 4 in pedestal 34 on the axis 32 of end.
Further, Fig. 2 and Fig. 4 are please referred to, one as transformer fe stem clamping device provided by the utility model
Kind specific embodiment, the outer wall of the second side plate 34b are equipped with external screw thread, and the inner wall of the first side plate 33b is equipped with and the second side plate 34b
On the matched internal screw thread of external screw thread, the first side plate 33b and the second side plate 34b are threadably secured connection.Pass through the first side plate
The threaded connection of 33b and the second side plate 34b can easily disassemble pedestal 34 from mounting lid 33, convenient to the bottom of positioned at
The end axis 32 and thrust bearing 4 of 34 inner cavities of seat are safeguarded or are repaired.
Further, referring to Fig. 4, one kind as transformer fe stem clamping device provided by the utility model is specific
Embodiment, the height of the second side plate 34b are greater than the thickness of thrust bearing 4, guarantee the second side plate 34b's and the first side plate 33b
Being threadedly coupled has sufficient length；Thrust bearing 4 includes the blowout patche 4a rotated with end axis 32 and the seat ring abutted with bottom plate 34a
4b is interference fitted connection, i.e. seat ring 4b and the second side plate 34b between the external cylindrical surface of seat ring 4b and the inner wall of the second side plate 34b
Between keep tighter connection, the internal diameter of the second side plate 34b in place of blowout patche 4a is greater than the outer diameter of blowout patche 4a, i.e. blowout patche 4a and the
There is gap, the two is not directly connected between two side plate 34b；Specifically, the inner hole of the second side plate 34b is stepped hole, step surface
Positioned at blowout patche 4a between seat ring 4b.Specifically, the diameter of bore of blowout patche 4a is generally slightly smaller than the diameter of bore of seat ring 4b, axis
The connection that 4a and bearing portion 32c keeps tighter is enclosed, it is more loose company between seat ring 4b and bearing portion 32c that the two, which keeps opposing stationary,
It connects, there is relative motion between the two.
Further, Fig. 2 and Fig. 4 are please referred to, one as transformer fe stem clamping device provided by the utility model
Kind specific embodiment, internal diameter of the outer diameter less than the second side plate 34b of shaft shoulder 32a, to guarantee that shaft shoulder 32a is rotated with lead screw 31
When, the inner wall of the second side plate 34b will not be generated with the external cylindrical surface of shaft shoulder 32a to be contacted and rubs；The upper surface and top of shaft shoulder 32a
Between the lower end surface of plate 33a be equipped with gap, the gap be not more than two millimeters, the effect that gap is set be prevent shaft shoulder 32a with
When lead screw 31 rotates, the upper surface of shaft shoulder 32a is generated with the lower end surface of top plate 33a to be contacted and rubs；But gap cannot be too big,
Otherwise when lead screw 31 is lifted up with moved end axis 32, the upper surface of shaft shoulder 32a and the lower end face contact of top plate 33a, shaft shoulder 33a
Lower end surface and blowout patche 4a between can generate compared with big gap, can not be limited in thrust bearing 4 in compact space is influencing it just
Often work.
Further, refering to fig. 1, as a kind of specific reality of transformer fe stem clamping device provided by the utility model
Mode is applied, the top of lead screw 31 is coaxially installed with the spin-block 31a for rotating threaded shaft 31.Spin-block 31a is that rotating threaded shaft 31 provides
The point of application, is facilitated and is rotated using tool to lead screw 31.
Further, a kind of specific embodiment as transformer fe stem clamping device provided by the utility model,
The cross sectional shape of spin-block 31a be it is rectangular, lead screw 31 is rotated using adjustable wrench to facilitate.
Further, a kind of specific embodiment as transformer fe stem clamping device provided by the utility model,
Spin-block 31a is hex nut, and so as to be rotated using box spanner to lead screw 31, and hex nut is easy to get.Specifically
, hex nut can be fixedly arranged on 31 upper end of lead screw by welding.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. transformer fe stem clamping device, including upper clamping piece, lower clamping piece and for connecting the upper clamping piece and lower clamping piece and energy
Enough limit the pull rod of the maximum distance between the upper clamping piece and lower clamping piece, it is characterised in that: further include
Axle sleeve is fixedly arranged on the center of the upper clamping piece and is equipped with internal screw thread；
Clamp system, including
Lead screw is arranged in the axle sleeve and is equipped with and the matched external screw thread of internal screw thread on the axle sleeve；
Axis is held, the lead screw lower end is coaxially fixedly arranged on and middle part is equipped with the shaft shoulder, lower part is equipped with bearing portion；
Mounting lid, the top plate including being equipped with center opening, the top plate are arranged on the shaft shoulder by means of the center opening
Side；
Pedestal is fixedly connected with mounting lid, including being located at the bottom plate below the end axis, the bottom plate and the shaft shoulder it
Between be equipped with the thrust bearing that is set on the bearing portion.
2. transformer fe stem clamping device as described in claim 1, it is characterised in that: the end axis further includes positioned at described
Above the shaft shoulder and diameter is less than the interconnecting piece of the shaft shoulder, and the interconnecting piece is fixedly connected with the lower end of the lead screw, the axis
The length of bearing portion is less than the thickness of the thrust bearing.
3. transformer fe stem clamping device as claimed in claim 2, it is characterised in that: the mounting lid further includes from described
First side plate of the cylindrical toroidal that top plate extends downwardly, the pedestal further include the cylindrical toroidal stretched out upwards from the bottom plate
Second side plate, first side plate are plugged and are fixed to each other with second side plate.
4. transformer fe stem clamping device as claimed in claim 3, it is characterised in that: the outer wall of second side plate is equipped with
The inner wall of external screw thread, first side plate is equipped with and the matched internal screw thread of external screw thread on second side plate, first side
Plate and second side plate are threadably secured connection.
5. transformer fe stem clamping device as claimed in claim 4, it is characterised in that: the height of second side plate is greater than
The thickness of the thrust bearing, the thrust bearing include the blowout patche rotated with the end axis and the seat abutted with the bottom plate
Circle is interference fitted connection between the external cylindrical surface of the seat ring and the inner wall of second side plate, described in place of the blowout patche
The internal diameter of second side plate is greater than the outer diameter of the blowout patche.
6. transformer fe stem clamping device as claimed in claim 5, it is characterised in that: the outer diameter of the shaft shoulder is less than described
The internal diameter of second side plate is equipped with gap between the upper surface of the shaft shoulder and the lower end surface of the top plate, the gap is not more than
Two millimeters.
7. transformer fe stem clamping device as described in claim 1, it is characterised in that: the top of the lead screw is coaxially fixed
There is the spin-block for rotating the lead screw.
8. transformer fe stem clamping device as claimed in claim 7, it is characterised in that: the cross sectional shape of the spin-block is side
Shape.
9. transformer fe stem clamping device as claimed in claim 7, it is characterised in that: the spin-block is hex nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822066803.3U CN209304403U (en) | 2018-12-10 | 2018-12-10 | Transformer fe stem clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822066803.3U CN209304403U (en) | 2018-12-10 | 2018-12-10 | Transformer fe stem clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209304403U true CN209304403U (en) | 2019-08-27 |
Family
ID=67676269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822066803.3U Active CN209304403U (en) | 2018-12-10 | 2018-12-10 | Transformer fe stem clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209304403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751962A (en) * | 2021-08-04 | 2021-12-07 | 江苏恒变电力设备有限公司 | Hole drilling process for clamping piece for iron core |
-
2018
- 2018-12-10 CN CN201822066803.3U patent/CN209304403U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751962A (en) * | 2021-08-04 | 2021-12-07 | 江苏恒变电力设备有限公司 | Hole drilling process for clamping piece for iron core |
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